Removable thread for oil savers



May'z?, 1930. f J. N. @CKE l '1,159,909

REKOVABLE THREAD FOR OIL SAYERS Filed Aug. 25, 192e fg-Lgf',

ing:

` f Locutor? Loire/BEACH, CALIFORNLAEY REMOVAJBLRTEREAD 'Ferroni-severas "gas ypocket is encountered,; or Wherethere has ybeenn1'iscalculation vas tothe position of the tool in thev casing. vvThisstriking oi the'tool f against rthe head resulted .in breaking either [for both the'ltool; or headjor thelcablewould "part, allowing'the'ftool to Vfallfinto the Well. n y l L YVOrLrnedthat thefthreadslon' theshells 8 9v with tlisastrouseffectsj A Y n V'The object lof'my"inventionis to provide I 'as simple and inexpensive' y ngthe defects ypeviously described.' 1 d yA further objectisftoprovidereplaceable l andremovable threads-forjdlol' saying head, i which maybe quickly inserted,l and-the head 'f "r'eplacedlif,the tool should 'strike said head imdshear'olftheheads V l' mjfinyention mayappeanfrom',theaccom- Other objects, "advantages :and'rvfeatures of' 'y panyin'g drawing', thefsubj'ined detailed description, thev appended claim eration and useiof j ydeyice;

inthe drawing 5y saver' fandattache shown section.'

" the removablethreads;` f

able'threads in position, f Y j 'Referringlinorefpartcula Vly toH'thefdraW- meansr'of overcomf' sitionihg the said shells;-

-' A* l prefer to form the shells 8 9 a 'f i1-i '1115311 Oil Saver head hayingga trans-.17I

,fFigJl isa side 'elelvationofziny oil Sayer-f x with the removablethreadsmounted thereon. d Fig.; 2'is a side elevatinzoffhalf of theoil Vrib 'onasa'djshell-s `adaptedV toflit "into-L Said dthreads,r an with the cap d v y v n n 5v j; "said'slotsfthereby removably and n o'n-rotat-V e0 f v'Fig.,34s a fperspectiverViewfotonehalfyofI Fig. 4 isa perspectiveview 'of-airagment p .y I v n `groot/e.andilongitudinal"slotsithereilnex of theil saver and with* ofl thel remoyj' ternally Y'threaded complementary d shells,l 'a 'f rib'on-each of shel1sadaptedtolit into. f Y v"saidgroove, strips 'on4v said shells adapte'd'to [fit into said slots, thereby remyablyandnon-"f y u Y rotatablyfmountingthe lshells'on `thefheadf i rs provided in my oils Yerjthrough n i thevheadf so'thatr'thethreadsfon 'said'shells;v l .Will'she'ar"off'yvitholit-injuringthe head;V s

fcableV operating injfsaidfbore land` 5v v formed inhalvesybears lvagair'ist the :top Aof f .f the packing and. is'f-heldainiposiaonbyi. f 1 ai A`a head v6 threaded'fon the upper` endfof the 'y v ,'villbeseen that the threadedshells are secure-fY -ly and'nonj-rotatably mounted on the head a.

"The groove'lO andv'ringlQ are so accuratelyi'ee Willcoincide.. Abottom' 14 is formed on'each" i f Vofthe `shells 8 9 against which the bottom or' l l i thehead a' bears, thus further accuratelypometal oralloysuch as babbittfzinc alloy, etc.,v A so that "When the tool strikesfthe 'head "the f ting the tool tocarry the head yupwardlyl With! out'v injury thereto. Thesheared shellsY 8 9 .l

a.newset'and the head a'again'set"inposition Havingvdescribed my inventionjy "I claim:

versefgrooye and,longitudinal'slots therein-,y Vext'erna'lly.threaded comp'leinerltaryfshells; a

groove, strips on ysaid shells adaptedto fitvinto f vsaid shellsbeing kformed of a softer metal than' 2- 1n testimony whereof,A I 4aliX my signature i JAMES NE1L; 

